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분수: 분모가 다른 덧셈4분수5

1
4 5
+
9 9
=
81 45
4
+
9
=
9 5
2
9 9
+
3 3
=
18 9
9
+
3
=
2
3
3 3
+
1 4
=
15 12
3
+
1
=
5 4
4
1 4
+
4 7
=
23 28
5
4 7
+
3 8
=
53 56
6
3 8
+
4 6
=
25 24
7
8 6
+
3 2
=
17 6
8
3 2
+
2 3
=
13 6
9
3 2
+
8 6
=
17 6
10
8 6
+
6 3
=
20 6
8
+
6
=
10 3
11
6 3
+
2 5
=
36 15
6
+
2
=
12 5
12
2 5
+
7 2
=
39 10
13
7 2
+
8 6
=
29 6
14
8 6
+
1 5
=
46 30
8
+
1
=
23 15
15
5 9
+
1 6
=
13 18